OOAD Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

OOAD Interview Questions

Questions Answers Views Company eMail

If a method definition has been specified in class , its base class , and the interface which the class is implementing, which definition will be picked if we try to access it using interface reference and class object?

991

What is difference between encapsulation and abstraction?

1001

Difference between encapsulation and data hiding ?

900

Difference between abstraction and implementation hiding ?

1094

What are the features of encapsulation ?

989

Difference between composition and inheritance ?

969

Are constructors inherited? Can a subclass call the parent's class constructor? When?

995

Can we reduce the visibility of the inherited or overridden method ?

1035

Which of the following is tightly bound ? Inheritance or composition ?

1 1652

Does a class inherit the constructor of its super class?

947

How many methods do u implement if implement the serializable interface?

962

What does the “abstract” keyword mean in front of a method? A class?

977

How many methods are there in the externalizable interface?

1017

What interface must an object implement before it can be written to a stream as an object?

1082

What does it mean that a method or class is abstract?

975

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Un-Answered Questions { OOAD }

What is the use of destructive method?

961

what is virtual function and pure virtual function ?

976

What does the keyword virtual represented in the method definition?

1059

Explain what you understand by function overloading.

970

explain the difference between operator overloading and function overloading.

997

What is data encapsulation and what's its significance?

1058

Explain about instance in object oriented programming?

1092

What is an abstraction and why is it important?

1028

When will you use an interface and abstract class?

997

What are the basic concepts of oop?

1009

Explain the abstract class modifier?

886

How to differentiate between a CreateObject() and GetObject() ?

1050

Can different parts of a partial class inherit from different interfaces?

981

What is the difference between function overloading and over riding?

1037

How can I be thrown polymorphically?

978

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